# maths-surface area

posted by .

A solid is in the form of cone mounted on a hemisphere in such a way that the centre of the base of the cone just coincide with the centre of the base of the hemisphere. Slant height of the cone is L and radius of the base of the cone is 1/2r where through r is the radius of the hemisphere. Prove that the surface area of the solid is pie/4 (11r+ 2L) r sq. units.

• maths-surface area -

p;luo

## Similar Questions

1. ### AP Calculus..again

A balloon is composed of a right circular cone joined at its base to a hemisphere. The diameter of the base is equal to the height of the cone. If the balloon is inflated, at what rate is the volume, V, changing with respect to the …
2. ### geometry

A cone is topped with a hemisphere. Calculate the total surface area if the radius of the cone and hemisphere is 10 cm and the height of the cone is 24 cm.
3. ### Math

1)Forty solid hemisphere each of diameter 2cm , are melted to form a solid cone with a base diameter 6cm .Find the height of the cone?
4. ### maths

A Toy is in the form of a hemisphere surmounted by a right circular cone of the same base radius as that of the hemisphere .If the radius of base of the cone is 21 cm and its volume is 2/3 of the volume of hemisphere calculate the …
5. ### Math

a cone and a hemisphere share the base that is a semicirclee with radius 3 and the cone is inscribed inside the hemisphere. find the volume of the region inside the hemisphere
6. ### Math

What is the surface area and volume of a composite figure made up of a hemisphere and a cone in terms of pi?
7. ### math

A right circular cone stands on a hemisphere. The base radius of the cone is equal to the radius of the hemisphere. If the base radius of the cone is 10 centimeters and its height is 15 centimeters,calculate the total volume of the …
8. ### Maths

A sector of a circle of radius 7cm subtending an angle of 270 degree at centre of the circle is use to form a cone?
9. ### Math

Please Help A body consists of a solid hemisphere of radius r joined to a right circular cone of base radius r and perpendicular height h. The plane surfaces of the cone and hemisphere coincide and both solids are made of the same …
10. ### Maths

the diagram shows a composite solid consisting of cone and a hemisphere.the cone has a height of 10 cm a base diameter of 12 cm .Find volume. Of the whole solid.

More Similar Questions